MEDIUM
httpd: mod_ssl per-connection memory leak for connections with zlib compression
Published Jul 10, 2008
5.0
MEDIUMCVSS 2.0
EPSS 5.29%
Description
Memory leak in the zlib_stateful_init function in crypto/comp/c_zlib.c in libssl in OpenSSL 0.9.8f through 0.9.8h allows remote attackers to cause a denial of service (memory consumption) via multiple calls, as demonstrated by initial SSL client handshakes to the Apache HTTP Server mod_ssl that specify a compression algorithm.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
httpd-0:2.2.3-22.el5_3.1
Fixed · RHSA-2009:1075
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | httpd-0:2.2.3-22.el5_3.1 | Fixed | RHSA-2009:1075 |
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of mod_ssl or httpd as shipped with Red Hat Enterprise Linux 2.1, 3, 4, and 5 prior to 5.3.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
5.29% 0.05288
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.05288
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.29% (0.05288) | 92.32th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.29% (0.05288) | 91.49th | v5 (v2026.06.15) |
| Dec 28, 2025 | 8.96% (0.08958) | 92.32th | v4 (v2025.03.14) |
| Dec 27, 2025 | 10.02% (0.10020) | 92.86th | v4 (v2025.03.14) |
| Jul 16, 2025 | 8.14% (0.08137) | 91.76th | v4 (v2025.03.14) |
| May 21, 2025 | 2.87% (0.02866) | 85.57th | v4 (v2025.03.14) |
| Mar 30, 2025 | 6.84% (0.06837) | 90.44th | v4 (v2025.03.14) |
| Mar 29, 2025 | 12.55% (0.12546) | 89.88th | v4 (v2025.03.14) |
| Mar 21, 2025 | 6.84% (0.06837) | 90.55th | v4 (v2025.03.14) |
| Mar 17, 2025 | 8.14% (0.08137) | 91.54th | v4 (v2025.03.14) |
| Dec 17, 2024 | 14.69% (0.14694) | 95.76th | v3 (v2023.03.01) |
| Dec 12, 2024 | 11.42% (0.11424) | 95.48th | v3 (v2023.03.01) |
| Jul 16, 2024 | 14.14% (0.14145) | 95.74th | v3 (v2023.03.01) |
| Mar 7, 2023 | 13.24% (0.13239) | 94.61th | v3 (v2023.03.01) |
| Mar 6, 2023 | 7.56% (0.07559) | 92.87th | v2 (v2022.01.01) |
| Feb 13, 2023 | 7.56% (0.07559) | 92.57th | v2 (v2022.01.01) |
| Feb 3, 2023 | 4.72% (0.04720) | 88.89th | v2 (v2022.01.01) |
| Apr 1, 2022 | 7.56% (0.07559) | 92.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.56% (0.07559) | 81.11th | v2 (v2022.01.01) |
References (35)
- http://bugs.gentoo.org/show_bug.cgi?id=222643 x_refsource_CONFIRM
- http://lists.apple.com/archives/security-announce/2008/Oct/msg00001.html vendor-advisoryx_refsource_APPLE
- http://lists.opensuse.org/opensuse-security-announce/2008-11/msg00000.html vendor-advisoryx_refsource_SUSE
- http://marc.info/?l=openssl-dev&m=121060672602371&w=2 mailing-listx_refsource_MLISTExploit
- http://secunia.com/advisories/31026 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/31416 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/32222 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/34219 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/35264 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/38761 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/42724 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/42733 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/44183 third-party-advisoryx_refsource_SECUNIA
- http://security.gentoo.org/glsa/glsa-200807-06.xml vendor-advisoryx_refsource_GENTOO
- http://securityreason.com/securityalert/3981 third-party-advisoryx_refsource_SREASON
- http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.663049 vendor-advisoryx_refsource_SLACKWARE
- http://support.apple.com/kb/HT3216 x_refsource_CONFIRM
- http://svn.apache.org/viewvc?view=rev&revision=654119 x_refsource_CONFIRM
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:124 vendor-advisoryx_refsource_MANDRIVA
- http://www.redhat.com/support/errata/RHSA-2009-1075.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/bid/31681 vdb-entryx_refsource_BID
- http://www.securityfocus.com/bid/31692 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-731-1 vendor-advisoryx_refsource_UBUNTU
- http://www.vupen.com/english/advisories/2008/2780 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2008-1678 Vendor Advisory
- https://bugs.edge.launchpad.net/bugs/186339 x_refsource_CONFIRM
- https://bugs.edge.launchpad.net/bugs/224945 x_refsource_CONFIRMExploit
- https://bugzilla.redhat.com/show_bug.cgi?id=447268 x_refsource_CONFIRMIssue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/43948 vdb-entryx_refsource_XF
- https://issues.apache.org/bugzilla/show_bug.cgi?id=44975 x_refsource_CONFIRM
- https://kb.bluecoat.com/index?page=content&id=SA50 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2008-1678
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9754 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2008-1678
- https://www.redhat.com/archives/fedora-package-announce/2008-August/msg00055.html vendor-advisoryx_refsource_FEDORA
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Jul 10, 2008
Updated Aug 7, 2024
Reserved Apr 3, 2008
Link CVE-2008-1678
CISA Vulnrichment
Updated n/a